| http://www.w3.org/ns/prov#value | - conditioning Electrical work Masonry, stonework, and plastering Masonry and other stonework Roofing, siding, and sheet metal work Concrete work Misc. special trade contractors Excavation work Manufacturing Food and kindred products Lumber and wood products Printing and publishing Rubber and miscellaneous plastics products Miscellaneous plastics products, n.e.c.
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